FR730429A - Perfectionnements aux sources lumineuses - Google Patents
Perfectionnements aux sources lumineusesInfo
- Publication number
- FR730429A FR730429A FR730429DA FR730429A FR 730429 A FR730429 A FR 730429A FR 730429D A FR730429D A FR 730429DA FR 730429 A FR730429 A FR 730429A
- Authority
- FR
- France
- Prior art keywords
- light sources
- sources
- light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J61/00—Gas-discharge or vapour-discharge lamps
- H01J61/96—Lamps with light-emitting discharge path and separately-heated incandescent body within a common envelope, e.g. for simulating daylight
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B31/00—Electric arc lamps
- H05B31/0018—Electric arc lamps in a closed vessel
- H05B31/0027—Electric arc lamps in a closed vessel with special gasfilling
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US510412A US2046096A (en) | 1931-01-22 | 1931-01-22 | Electric light source |
Publications (1)
Publication Number | Publication Date |
---|---|
FR730429A true FR730429A (fr) | 1932-08-12 |
Family
ID=24030625
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR730429D Expired FR730429A (fr) | 1931-01-22 | 1932-01-21 | Perfectionnements aux sources lumineuses |
Country Status (3)
Country | Link |
---|---|
US (1) | US2046096A (fr) |
FR (1) | FR730429A (fr) |
NL (1) | NL40818C (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2590152A (en) * | 1945-01-16 | 1952-03-25 | John T Kilbride | Vacuum cleaner with sterilizing means |
US2524588A (en) * | 1949-05-04 | 1950-10-03 | Charles E Bechtel | Spark arrester |
US3222567A (en) * | 1962-03-09 | 1965-12-07 | Sylvania Electric Prod | Projection lamp |
-
0
- NL NL40818D patent/NL40818C/xx active
-
1931
- 1931-01-22 US US510412A patent/US2046096A/en not_active Expired - Lifetime
-
1932
- 1932-01-21 FR FR730429D patent/FR730429A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US2046096A (en) | 1936-06-30 |
NL40818C (fr) |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR733618A (fr) | Perfectionnements aux surfaces réfléchissantes | |
FR730429A (fr) | Perfectionnements aux sources lumineuses | |
FR726819A (fr) | Perfectionnements aux embarcations légères | |
FR728748A (fr) | Perfectionnements aux miroirs | |
FR727730A (fr) | Perfectionnements aux aéroplanes | |
FR728498A (fr) | Perfectionnements aux projecteurs de lumière | |
FR724344A (fr) | Perfectionnements apportés aux lampes de mine | |
FR46615E (fr) | Perfectionnements aux bicyclettes | |
FR827395A (fr) | Perfectionnements aux sources de lumière | |
FR736100A (fr) | Perfectionnements aux aéroplanes | |
FR42187E (fr) | Perfectionnements apportés aux crémones | |
FR711214A (fr) | Perfectionnements aux miroirs ornementaux | |
FR719705A (fr) | Perfectionnements aux fontaines lumineuses | |
FR720695A (fr) | Perfectionnements aux montures de lampes | |
FR725213A (fr) | Perfectionnements apportés aux stéréoscopes | |
FR715992A (fr) | Perfectionnements aux motocaméras | |
FR732899A (fr) | Perfectionnements aux micro-téléphones | |
FR732335A (fr) | Perfectionnements aux servo-freins | |
FR727937A (fr) | Perfectionnements aux décavaillonneurs | |
FR719285A (fr) | Perfectionnements aux bannetons | |
FR41670E (fr) | Perfectionnements aux décavaillonneurs | |
FR718083A (fr) | Perfectionnements aux soupapes-pistons | |
FR737974A (fr) | Perfectionnements aux projecteurs lumineux | |
FR727597A (fr) | Perfectionnements apportés aux réflecteurs | |
FR721520A (fr) | Perfectionnements aux auditoria |